Process for molding asphaltic compositions and mold therefor



E. E. ZECH Nov. 8, 1932.

PROCESS FOR MOLDING ASPHALTIG COMPOSITIONS AND MOLD THEREFOR Filed Aug. 27, 1931 2 Sheets-Sheet l :Jwwmtot I Edward E. Z ash Nov. 8, 1932. E ZECH 1,887,358

' PROCESS FOR MOLDING ASPHALTIC COMPOSITIONS AND MOLD THEREFOR Filed Aug. 27, 1951 2 Sheets-Sh et 2 Patented Nov. 8, 1932 UNITED STATES PAT -ENT' OFFICEI EDWARD E. ZEGE, or GRAND RAPIDS, MICHIGAN, AssIGNoR or ONE-FOURTH 17o O LO w. JUDKINs, ONE-FOURTH T BERT .IOHNsO AN ONE-FOURTH TO GEORGE LANG- LANDs, ALL OF GRAND RAPIDS, MICHIGAN DROcEss FOR MOLDING srHAL'rIo COMPOSITIONS AND MOLD THEREFO w Application filed August 27, 1931.- Serial No. 559,699.

The present invention relates to articles made of asphalt, processes for making the same, and means for carrying out said processes; and its object is, generally, to provide improved asphaltic' compositions, improved processes for making articles therefrom, and improved means for carrying out such processes.

The substance commonly called asphalt 1 (including asphaltic compositions or compositions of matter in which such asphalt is thebody or principal ingredient), if melted and poured into molds of rigid material, adheres thereto so that the molded article can not be readily withdrawn therefrom or with out deforming or injuring the article.

The principal object of this inventiontherefore is to provide an improved process for molding such asphalt or asphaltic compositions whereby these diificulties are avoided, further objects being to provide such 1mproved compositions which may be readily thus molded into tough and stable articles of desired shape and form, and improved molds for molding the same; and further,

show the reinforcing element embedded therein;

Figure 2 is a transverse sectional view thereof taken on line 22 of Figure 1; Figure 3 is a view in perspective of a mold for making said body and of means for guid-' edly inserting said element into the mold;

Figure 4 is a horizontal sectional view of corner portions thereof taken on line 4-4 of Figures 3 and 5; and

Figure 5 is a vertical sectional view of the same taken on line 55 of Figures 3 and 4..

In carrying out my process I provide a moldcomposed of molding sand (or'equivalent material), indicated at 1 in Figures 3,

' 4 and 5 of these drawings, contained in a box same into the recesses is waterproof as is the sand thereof by a suitable patternare' the same as in molds for metal. I prepare an .as'phaltic composition, melt and pour the I 3 in the sand formed by the pattern. When cool, the molded body or. articlem the illustrated example, the main. part 4 of the burial vault illustrated in Figures 1 and'2is readily removed from the mold. 7 It is immaterial that particles of sand may cling to the molded article for the same may be readily removed therefrom. 3 It will be seen that bodies or articles havingprojections and recesses in their surfaces, or

articles of artistic form having bas relief or intaglio surfaces may be" molded in such a mold and withdrawn therefrom without in my. r Y i I have found'that a composition including some, or all, of'the-following ingredients in the following proportions is a desirable,and I in my view a" preferable, asphaltic composition for molding by my process andin such amold,viz.': V

i 1 Per cent Mexican Oil asphalt Gilsonite asphalt"; 10 Strengthening fibres, as asbestos 10 Hardwood particles or sawdust 5 WVood ashes -i 5 Amorphous lime 5 Rosin 3 Chloride of lime 2 The meltable ingredients are melted and they and the other ingredients are thoroughly mixed together and the mass is then poured into the mold and left to cool and harden therein. s 1 i This composition forms a body or article that is stable, tough and sufliciently rigid and required for burial vaults and the like. In order to add to the strength of the article or body, I embody therein in the molding thereof a suitable strengthening element or reinforcement. A preferable form of such reinforcement is the wire mesh structure 5 shown inthe drawings having angle-iron corner members 6, 6 and edge members 7 In Order to insert this reinforcing or strengthening element, into the recesses or flask 2. This mold and the formation of 3 of the mold formed by the pattern, without all) contacting the sand at the sides of said recesses and thus injuring or breaking down the sand formation, I provide the mold with guide members 8 mounted at 9 in connection with the flask of the mold, at the mouth thereof, and extending parallelly with the sides of said recesses. In the form illustrated, these guide members nermembers 6 slide members into the mold. The reinforcing element may be suspended and slowly lowered by the cord 10 extending over a pulley 11.

I claim: Y I

l. The process for making a body composed of asphalt which includes forming a mold of sand, melting the asphalt, and pouring the same into the mold. j

2. The process for making a body composed of reinforced asphalt, which includes A forming a mold, inserting a reinforcing element thereinto, melting the asphalt, and pouring the same into the mold around the reinforcing element.

3. The process for making a body composed of reinforced asphalt which includes forming a mold of sand, inserting a reinforcing element thereinto spaced from the sand, melting the asphalt, and pouring the same into the mold around the reinforcing element.

4. A mold for bodies having a reinforcing element, comprising a flask containing sand disposed in mold form by a pattern, and guide members mounted inconnection with the flask for guiding the reinforcing element into the moldsp'acedly from the sand thereof.

In testimony whereof I have hereunto set my hand at Grand Rapids, Michigan, this 24th day of August, 1931.

EDWARD E. ZECH.

are of angle-iron and the cor guidedly in the guide 

